Type one only. The diabetic condition is basicly divided into those kids who loose the ability to make Insulin (type 1)& those adults (type 2)who make Insulin but not enough in quantity or quality to do the job.That job is transporting glucose into cells for metabolism. You could develop type 1 as an adult, but I have never seen or heard of a type 2 under the age of 15( he was an overweight hypertensive teen.).